Silicon carbide precursors and their preparation and use

Details Silicon carbide precursors and their preparation and use Silicon carbide precursors and their preparation and use

1992-04-02

1993-12-14

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 10, C08G 7724

Patent

active

052704297

ABSTRACT:
(Dichloromethyl)methyldichlorosilane is reacted in the presence of Mg, K, Na or Li to form chloropolycarbosilanes which in turn can be reacted with a reducing agent to form polycarbosilane polymers that have utility as precursors to silicon carbide ceramics.

REFERENCES:
patent: 4472591 (1984-09-01), Schilling, Jr. et al.
patent: 4590253 (1986-05-01), Hasegawa et al.
patent: 4761458 (1988-08-01), Burns et al.
C. L. Czejak et al., J. Am. Ceram. Soc., 73, 352 (1990).
C. L. Schilling et al., Am. Ceram. Soc. Bull., 62, 912 (1983).
S. Yajima, Am. Ceram. Soc. Bull., 62, 893 (1983).
D. J. Carlsson et al., J. Am. Ceram. Soc., 73, 237 (1990).

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